Related party transactions are a perennial focus for finance teams, boards, and auditors, especially within SMEs and growing companies in the UK. Navigating these transactions requires a robust process to ensure regulatory compliance, financial integrity, and transparent governance. This related party transactions checklist offers a practical framework for identifying, approving, disclosing, and documenting related party transactions, tailored to the realities of UK business and board practice.
Defining Related Parties and Transactions
For UK companies, a “related party” generally includes directors, key management, major shareholders, and entities under their control or significant influence. The Companies Act 2006, FRS 102, and relevant HMRC guidance require careful identification and management of all transactions with these parties. Ongoing vigilance is essential to avoid omissions, conflicts of interest, or regulatory breaches—annual declarations alone are not sufficient.
Checklist Step 1: Identification of Related Parties
Accurate identification is the foundation of any related party transactions checklist and compliance process. Finance teams should work with company secretarial and HR to maintain a current register of related parties. This should include:
- All directors and their close family members
- Key management personnel
- Entities with common directors or significant shareholders
- Subsidiaries, parent companies, and joint ventures
Establish clear protocols for updating the register when appointments, resignations, or shareholdings change. Consider using board questionnaires and annual confirmations, but supplement these with regular checks against Companies House filings and internal records to ensure completeness.
Checklist Step 2: Transaction Identification and Evaluation
Not all related party transactions are immediately obvious. Beyond direct sales or loans, look for:
- Leases and service contracts
- Asset transfers (including IP or intangible assets)
- Management charges and recharges
- Guarantees and security arrangements
Finance should monitor the general ledger for entries with related entities or individuals. Use threshold tests from accounting standards and HMRC rules to trigger deeper review, especially where value, frequency, or complexity is high. Always consider whether the substance of a transaction could create a related party exposure, even if it is not immediately labelled as such.
Practical Example: A Family-Owned SME
Consider a family-owned manufacturing business where the managing director’s spouse provides IT consultancy services. Although not an employee, the spouse’s company invoices for substantial work throughout the year. Without a formal contract or board approval, this arrangement could be missed in the year-end review. A robust related party transactions checklist would flag the need to disclose this relationship, obtain board sign-off, and ensure the pricing is at arm’s length to avoid tax and audit issues.
Checklist Step 3: Internal Approval and Board Oversight
Board approval is not just best practice—it is often a regulatory requirement, particularly for substantial transactions. Key control points include:
- Advance disclosure to the board (with supporting documentation)
- Exclusion of conflicted directors from deliberation and voting
- Recording decisions and rationale in board minutes
- Clear evidence that terms are at arm’s length and in the company’s best interests
For complex situations, boards should proactively seek legal and compliance guidance to ensure all statutory obligations are met, and to evidence robust governance to shareholders and auditors. This is especially important where related party arrangements are outside normal business practice or involve significant sums.
Checklist Step 4: Disclosure and Financial Reporting
UK GAAP and the Companies Act require specific disclosures on related party transactions in the financial statements. Disclosures must include:
- The nature of the relationship
- Description of the transaction and outstanding balances
- Terms and conditions, including pricing and settlement
- Any guarantees or commitments
Finance teams should coordinate closely with auditors and external accountants to ensure all required disclosures are complete and accurate. Early engagement simplifies year-end processes and reduces the risk of audit queries, restatements, or potential penalties for non-compliance.
Checklist Step 5: Documentation and Audit Trail
Regulators and auditors increasingly expect a clear and contemporaneous audit trail for all related party transactions. This should include:
- Contracts, invoices, and correspondence relating to the transaction
- Board papers and minutes evidencing approval
- Supporting calculations, valuations, and benchmarking where relevant
- Updates to the related party register and disclosures
Consider leveraging digital document management systems to ensure version control and easy retrieval. For more complex or high-volume environments, review your Systems and Technology to automate tracking, flag exceptions, and maintain a robust audit trail that stands up to scrutiny.
Practical Considerations and Common Pitfalls
Typical issues in UK SMEs include informal arrangements, inadequate documentation, and underestimating the scope of related parties. To avoid these pitfalls:
- Prioritise training for finance and board members on related party risks
- Implement periodic reviews rather than relying solely on year-end processes
- Align related party monitoring with your tax risk register framework to capture indirect exposures
- Engage external advisers where transaction terms are unusual or high risk
For multi-entity or cross-border groups, review group structures and transfer pricing policies for consistency and compliance with both UK and international standards. Overlooking intra-group arrangements or foreign entities can result in missed disclosures or tax exposure.
FAQ: Troubleshooting Related Party Transactions
Q: What if a related party transaction is discovered after year-end?
A: Disclose the transaction as soon as it is identified, update the related party register, inform the auditors, and document remedial actions. Late discovery can increase audit risk, but prompt transparency and corrective steps help demonstrate good faith.
Q: How do we determine if terms are truly “arm’s length”?
A: Obtain market quotes or benchmarking data where possible. If comparable market data isn’t available, document the rationale for pricing and ensure the board reviews and approves the justification.
Q: Who is responsible for maintaining the related party transactions checklist?
A: Responsibility typically sits with the finance team, but it requires ongoing input from HR, company secretarial, and the board to remain effective and up-to-date.
Conclusion
Effective management of related party transactions is a cornerstone of strong governance and regulatory compliance for UK businesses. By following a structured related party transactions checklist—covering identification, approval, disclosure, and documentation—finance teams and boards can demonstrate due diligence and protect the organisation from financial and reputational risks. A proactive, transparent approach not only ensures compliance but also builds trust with stakeholders and regulators.

